Like many archive websites, it's hard to tell at a glance what resources are available online, and which ones require a visit in person. But with some digging around, it's clear that Minnesota has digitized a lot of content, both items (photos, maps, documents, etc) and database records (lookups for census, vital records, and the like).

The site index gives a good, quick overview of what's available (but again...which topics are online vs offline is impossible to tell).

A good starting point for genealogy research is the Minnesota People Find search page where, in one fell swoop, you can search birth and death records, census records, veteran's gravesites, and an assortment of other databases. This is a fantastic tool, and one that other state archives would do well to emulate. Hats off to Minnesota!

You can search the entire collection at the archives or click the button for Show only those with digital images to restrict search results to online content.